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drm/amd/amdgpu: Use IP discovery data to determine VCN enablement instead of MMSCH

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In the past, we use MMSCH to determine whether a VCN is enabled or not.
This is not reliable since after a FLR, MMSCH may report junk data.

It is better to use IP discovery data.

Signed-off-by: Bokun Zhang <Bokun.Zhang@amd.com>
Signed-off-by: Peng Ju Zhou <PengJu.Zhou@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Bokun Zhang
2021-01-05 16:15:57 -05:00
committed by Alex Deucher
parent 942ab769c5
commit 376002f4b0
5 changed files with 61 additions and 39 deletions
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8
drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c
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@@ -373,6 +373,14 @@ int amdgpu_discovery_get_ip_version(struct amdgpu_device *adev, int hw_id, int n
return -EINVAL;
}
int amdgpu_discovery_get_vcn_version(struct amdgpu_device *adev, int vcn_instance,
int *major, int *minor, int *revision)
{
return amdgpu_discovery_get_ip_version(adev, VCN_HWID,
vcn_instance, major, minor, revision);
}
void amdgpu_discovery_harvest_ip(struct amdgpu_device *adev)
{
struct binary_header *bhdr;